Learning C # for Selenium automation

To whom it may concern:

I am very new to C# and I have experience on selenium. I am not finding a better website which will help me to polish and expert on C# code using selenium WebDriver. I need some kind of assistance here. I thought my current job will train me, but there seems like no one who can help. I really need a help by directing me to the right sight or section where I can learn C# so I can use WebDrive to automate tests. Please help!

Best Regards,

Ruba